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Axial compensators are used to compensate for thermal elongation of the pipeline for all types of laying. Axial expansion joints are characterized by low weight and small dimensions.

The selection of an axial bellows compensator does not require special strength calculations and is carried out according to the compensating capacity, which should cover the linear thermal elongations of the pipeline section with a small margin.

In the event that the compensating capacity of one compensator is not enough to compensate for the calculated thermal elongations — several axial expansion joints are installed in series on the pipeline.

The increase in the length of the pipeline section during thermal expansion is determined by the formula:

**dL = a · L · (t _{max} – t_{min})**, mm

**a** – coefficient of linear thermal expansion, °C^{-1}, its value depends on the physical properties of the material.

**t _{max}** - maximum temperature of the hot-water in the pipeline, °C.

**t _{min}** - ambient temperature at the time of pipeline installation, °C.

**L** - pipeline section length, m.

Online Calculations

Calculation of pipe diameter by flow

Pipe span calculation

Calculation of pressure loss in pipe

Calculation of variations in pipe length

Calculation of heat loss from pipes

Calculation of heat losses from heating network pipes

Calculation of the U-shaped compensator

Calculation of the L-shaped compensator

Calculation of the Z-shaped compensator

Calculation of the Axial compensator

Collector diameter calculation

Calculation of the temperature of a mix of flows

Temperature curve of the heating system

Calculation of the throttle diaphragm

Heating cost calculator

Data verification heat meter

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